Abstract: The present invention provides an isolated protein comprising an immunoglobulin variable region comprising at least two cysteine residues positioned within framework region 1 such that if at least two of the cysteine residues are not conjugated to another compound a disulphide bond forms between the cysteine residues. Preferably the protein comprises an immunoglobulin heavy chain variable region and an immunoglobulin light chain variable region, wherein at least one of the variable regions comprises the two cysteine residues. The present invention also provides a protein that binds to TAG72. The present invention also provides conjugates of the protein and another compound.

Abstract: A thermal oil recovery process is disclosed for use in a heavy oil reservoir having a plurality of laterally separated, generally vertical wells whose use have left the reservoir characterized by a heated depletion zone, a channel, voidage, or mobility and communication. The process includes the steps of: drilling a well having a horizontal section and an opening therein that is located laterally between at least two of the vertical wells and at a depth within the lower part of the reservoir; injecting a steam through the two vertical wells to establish thermal communication with said horizontal well; and using the combination of steam drive and gravity drainage to recover oil from the reservoir through the horizontal well.

Abstract: A thermal oil recovery process is disclosed for use in an oil reservoir containing a plurality of laterally separated generally vertical wells that have been used for cyclic steam stimulation and that have left in the reservoir at least one of a heated depletion zone and a channel. The process includes the steps of: drilling a well having a horizontal section and an opening therein that is located laterally between at least two of the vertical wells and at a depth within the lower part of the reservoir; injecting a heated fluid through the two vertical wells to establish thermal communication with said horizontal well; and using steam drive and gravity drainage to recover oil from the reservoir through the horizontal well.